. >> reporter: beaumont hospital nurse zena kassab is testing tested though she doesn't have symptoms. she says weed spread testing is important to understand this pandemic. >> i have young children, people in my life over 65 with co-morbidities, as well. i want to know if i've been exposed what i can do to continue to protect my family and to continue to serve our community. >> reporter: testing like this is being done across the country, but with little federal oversight, accuracy is a concern. the fda has only officially approved one test. how accurate is the test that you have now? >> you know, we've believe it's in the high 90s. you know, no test is perfect. you're always going to have some false negatives, you're always going to have some false positives. >> do you think that antibody tests can give a false sense of security? >> anything can give you a false sense of security.ec ecautis even if yohave >>ara, e raing thei do you have a sense of when this test will be widely available to everybody? >> reporter: unfortunately, gayle, we don't know when it will be widely available.